Insulator.



FERDINAND SCHAUB, OF JERSEY CITY, NEW JERSEY.

INSULATOR.

Loaaioa.-

Specification of Letters Patent.

Patented Jan. 7, 1913.

Application led July S, 1908. Serial No. 442,648.

To al iv/wmt may concern.' l Be itknown that I, FERDINAND SoHAUB, a citizen of the United States, residing at J er l sey City, in the county of Hudson and State l of New Jersey, have invented certain new and `useful Improvements in Insulators, of I which the following is a full, clear, and eX- j' actspecitication.

My invention relates to certain new and l useful improvements in insulators for electrical conductors, and particularly to those consist-ing of a base and a removable cap, be-

vtween which two parts the conductors are adapted to loe-clamped.

It is the object of. my invention to improve and simplify the construction of same and to render their assembly and use as simple and eihcient as possible.

Another object of my invent-ion is so to form the said parts that they will coperate with 4one another without adjustment and without the necessity of carefully fitting them together, and also to render the parts interchangeable.

y invention iS also applicable to crossovers, but? I malte nospecic claim to these in this' application, as I am about to file a separate application covering the same. In so far as the present generic invention is concerned', however, it will be found applicable to ordinary insulators, cross-overs or other similar structures.

Several forms of my invention are illustrated in the accompanying drawings, wherein- Figure 1 illustrates an insulator base and cap in their simplest form, separated for the sake of clearness. Fig. 2 is a to plan view o f the base shown in Fig. 1. Fig. 3 is a sectional view, with .the part-s assembled, of the insulator cap and base shown in Fig.

Fig. 4 is a side elevation of a slightly modified form of my insulator. Fig. 5 is a sectional view of the structure shown in Fig. 4. Fig. 6 is a top plan view of an insulator base of the form shown in Fig.l 4; and Fig. 7 a plan view of the cap thereof. Fig. 8 is a side elevation, part-ly in section, of a third modified form; and Fig. 9 is a top plan view of the base of said form.

Like reference numerals indicate corresponding parts in the dilierent drawings.

The insulator parts may be made of porcelain, concrete, hard rubber, or any other suitable substance, and in the first form `receiving recess 4.

shown consist of a base or support l, which is provided with a central depression 2, a central passage 3, and a conductor-receiving recess 4. The conductor-receiving recess 4 is disposed substantially transversely of the base member. In the present illustration this recess is curved upwardly and outwurdly, which upward and outward curves will have the effect upon the wire of giving it a curve and a kink transversely of such curve whereby the wire will be held securely against `longitudinal movement. Viewed from the meeting face, this base member will be seen to be providedwith a segmental wire seat and outwardly of the wire seat will be disposed a segmental flange. In this form the face 5 of the remainder of the base, is Hat., A coperating cap 6 is provided, and the cap is formed integral with a tapering or expanding plug 7, adapted to fit the recess 2 in the base, and a central perforation or hole, registering with the hole 3 in the base, is provided forthe passage of the securing screw or bolt. An annular recess 8 is provided in the under-face of said cap, and a portion of this recess will always register with. the conductor-receiving recess 4 in the base, no matter in what position the cap may be placed on the base, and such portion of the recess will form part of the con: ductor-receiv'ing recess. When the conductor is placed in the recess 4 and the cap placed in position, the expanding plug will force the wire laterally, and upon tightening the bolt or screw 9, the conductor will be' firmly held in place. The annular recess 8 which forms a wire seat inthe meeting face of one of the members maybe regarded as presenting a circular wire Seat and an annular flange disposed outwardly of the wire seat. The wire seat and flange upon one member will register with the wire seat and flange of the other member when the members are properly assembled. The segmential wire seat will be in position to register with some portion of the annular wire seat upon the other member irrespective ofthe angular position in which the members are assembled.

In Figs. 4 to 7 a modified form of my invention is shown, and in this construction the base is provided with an annular rib l0, extending part way around the face thereof and abutting against the conductor- The cap' is symmetrical having an annular recess upon both sides,

so that it may be placed 8 upon each face,

' proper registra separated parts.

bers having a circular y nular flange surrounding the wire 'seat,' and mental form and with either side against the face of the base. The cooperation of the annular rib l0 and the recess 8 insures the centering and proper positioning of the parts together, so that the clamping screw will readily pass through the aperture in the base and cap. Usually in this form of insulator the wire is inserted after the cap and base are assembled and the screw or bolt partly tightened, when the conductor is orced betwen the two-slightly In this form the ends of the annular rib 10 form an abutting surface to prevent the conductor from being forced too far and to insure its positioning in the proper groove or recess.

In the third form of my invention, as shown in Figs. 8 and 9, the base is provided with a conductor-receiving groove Ll, a iiat face 5, and a centering plug or projection 11. This centering plug 11 coperates with the central recess 12 in the cap, and insures the yion of the parts.l It is obvious that many modifications and changes may be made in the form of my invention without departing from the spirit thereof, and I do not mean to limit/'myself to the exact form shown, but

What I claim and desire to secure by Letters Patent is:

l, An insulator comprising two members,` a body portion and a cap and means Jfor securing the same together,l one of said memwire-seat and an anthe other member having a wire seat of sega segmental flange disposed outwardly thereof said seat and tlange'being located in position tovregister with'the seat and ange respectively of the other member. l

2. An insulator comprising two members, a body portion and a'cap and means for se- .mental rib on 'thesegmental recess,

curing the same together, one of said members having a circular wire disposed transversely in respectthereoi,l and the other member having a wire seat of seg mental form and' a segment-al fiange disposed outwardly ot theseat and transversely thereof, said seat and flange being located in position to register with the seat and flange respectively oi" the other member.

3. An insulator comprising a pair of members constructed -and adapted for assemblage one with the other, each of such members having a plane meeting face adjacentitsisides and' one of such members having an annular recess extending below such plane face and the other member having a transverse recess extending below such plane face, said transverse recess being located in position to'register with some portion'of the annular recess when these members arc-assembled.

4. An jinsulator comprising a pair of members'one of said members having in its face an annular recess, the other of said members having a'segmental recess, which upon'iregistry with any portion of the annular recess will forma wire s'eat, and a seg' the -member provided with said rib beings disposed in position to be seated in the portions of the annular recess which are not in wireseat-orming lregistry with the segmental recess.

In testimony wher-cot, I have hereunto set my hand in the presence of two subscribing witnesses. A

FERDINAND SCHAUB.

lVitnesses EMIL SCHUMANN, CARL G. SCHUMANN.

Copies of this 'patent may be obtained'for ve cents each, by addressing the Washington, D. C.

Commissioner of Yatents,

seat and an an- -nular flange surroundingv the wire seat and 

